Demonstrators run near the Cenotaph war memorial on Whitehall during a Black Lives Matter protest in London, following the death of George Floyd who died in police custody in Minneapolis, London, Britain, June 6, 2020. REUTERS/Henry Nicholls

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June 06, 2020

Demonstrators run amid a cloud of tear gas during a protest against the government performance and worsening...

Palestinians protest against Israel's plan to annex parts of the occupied West Bank

A Palestinian demonstrator runs in front of burning tires during a protest against Israel's plan to annex parts of the occupied West Bank, in Kfar Qaddum near Nablus June 6, 2020. REUTERS/Mohamad Torokman

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June 05, 2020

An Air Force One crew member runs towards the base terminal for shelter as a storm approaches following...

An Air Force One crew member runs towards the base terminal for shelter as a storm approaches following...

An Air Force One crew member runs towards the base terminal for shelter as a storm approaches following a flight from Maine, at Joint Base Andrews in Maryland, U.S., June 5, 2020. REUTERS/Tom Brenner TPX IMAGES OF THE DAY

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June 05, 2020

Ambulances are parked at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Ambulances are parked at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Lights flash blue on top of an ambulance at the Hollymoor Ambulance Hub of the West Midlands Ambulance...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Lights flash blue on top of an ambulance at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A blood sample sits on a table at an antibody testing program at the Hollymoor Ambulance Hub of the West...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A blood sample sits on a table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Equipment used to take blood samples sits on a table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Equipment used to take blood samples sits on a table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Equipment used to take blood samples sits on a table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Equipment used to take blood samples sits on a table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Test tubes to be used for blood samples sit on table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic holds a test tube containing a blood sample during an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic holds a test tube containing a blood sample during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A blood sample is held during an antibody testing program at the Hollymoor Ambulance Hub of the West...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A blood sample is held during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic wears a plastic apron during an antibody testing program at the Hollymoor Ambulance Hub of...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic wears a plastic apron during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic takes a blood sample from a medical worker, during an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic takes a blood sample from a medical worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic takes a blood sample from a medical worker, during an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic takes a blood sample from a medical worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic takes a blood sample from a medical worker, during an antibody testing program at the Hollymoor...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic takes a blood sample from a medical worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic takes a blood sample from a front line ambulance worker, during an antibody testing program...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic takes a blood sample from a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic prepares to take a blood sample from a front line ambulance worker, during an antibody testing...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic prepares to take a blood sample from a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A paramedic takes a blood sample from a front line ambulance worker, during an antibody testing program...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

A paramedic takes a blood sample from a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Jess Baddams, paramedic, holds a blood sample as she poses for a photograph during an antibody testing...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, paramedic, holds a blood sample as she poses for a photograph during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Jess Baddams, paramedic, holds a blood sample as she poses for a photograph during an antibody testing...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, paramedic, holds a blood sample as she poses for a photograph during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, takes a blood sample from Tony Oliver, a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, takes a blood sample from Tony Oliver, a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Jess Baddams, a paramedic, right, holds a test tube to be used for a blood sample during an antibody...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, holds a test tube to be used for a blood sample during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, takes a blood sample from Tony Oliver, a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, takes a blood sample from Tracey Brooks, a front line ambulance worker, during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

Jess Baddams, a paramedic, right, uses a needle on a medical worker during an antibody testing program...

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, uses a needle on a medical worker during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, takes a blood sample from Emily Humpriss, a front line ambulance worker during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

NHS staff at antibody testing hub run by the West Midlands Ambulance service

Jess Baddams, a paramedic, right, takes a blood sample from Emily Humpriss, a front line ambulance worker during an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS

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June 05, 2020

A child runs along a road full of garbage in Dhaka, Bangladesh, June 5, 2020. REUTERS/Mohammad Ponir...

A demonstrator holds a sign reading "run Melania run," referring to first lady Melania Trump, as protests continue on the streets near the White House over the death in police custody of George Floyd, in Washington, U.S., June 3, 2020. REUTERS/Kevin Lamarque

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June 03, 2020

A lone jogger runs on the deserted Place de la Concorde in Paris during a lockdown imposed to slow the...

Contrast of Paris during and after the lockdown due to the coronavirus disease outbreak

A lone jogger runs on the deserted Place de la Concorde in Paris during a lockdown imposed to slow the rate of the coronavirus disease (COVID-19) in France, March 27, 2020. Picture taken March 27, 2020. REUTERS/Charles Platiau

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June 03, 2020

Gym members run on treadmills in a Fitness Park centre with new safety measures and social distancing...

Gym members run on treadmills in a Fitness Park centre with new safety measures and social distancing signs following the outbreak of the coronavirus disease (COVID-19), in Nice, France, June 3, 2020. REUTERS/Eric Gaillard

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June 03, 2020

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs...

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs following the outbreak of the coronavirus disease (COVID-19), in Nice, France June 3, 2020. REUTERS/Eric Gaillard

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June 03, 2020

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs...

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs following the outbreak of the coronavirus disease (COVID-19), in Nice, France June 3, 2020. REUTERS/Eric Gaillard

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June 03, 2020

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs...

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs following the outbreak of the coronavirus disease (COVID-19), in Nice, France June 3, 2020. REUTERS/Eric Gaillard

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June 03, 2020

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs...

A man runs on a treadmill in a Fitness Park centre with new safety measures and social distancing signs following the outbreak of the coronavirus disease (COVID-19), in Nice, France June 3, 2020. REUTERS/Eric Gaillard

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June 03, 2020

A protester runs away as a store is looted after marching against the death in Minneapolis police custody...

A protester runs away as a store is looted after marching against the death in Minneapolis police custody...

A protester runs away as a store is looted after marching against the death in Minneapolis police custody of George Floyd, in Manhattan, New York City, U.S., June 2, 2020. Picture taken June 2, 2020. REUTERS/Brendan McDermid

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June 03, 2020

A protestor runs from a police officer after protesters rally against the death in Minneapolis police...

Protesters gather against the death in Minneapolis police custody of George Floyd, in Houston

A protestor runs from a police officer after protesters rally against the death in Minneapolis police custody of George Floyd, in Houston, Texas, U.S., June 2, 2020. Picture taken June 2, 2020. REUTERS/Callaghan O'Hare

Swiss Paralympic athlete Marcel Hug trains on a road, as the outbreak of the coronavirus disease (COVID-19) continues, near Nottwil, Switzerland June 2, 2020. Picture taken June 2, 2020. REUTERS/Arnd Wiegmann

Swiss Paralympic athlete Marcel Hug trains on a road, as the outbreak of the coronavirus disease (COVID-19) continues, near Nottwil, Switzerland May 27, 2020. Picture taken May 27, 2020. REUTERS/Arnd Wiegmann

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June 03, 2020

Swiss Paralympic athlete Marcel Hug trains on a road, as the outbreak of the coronavirus disease (COVID-19)...

Swiss Paralympic athlete Marcel Hug trains on a road, as the outbreak of the coronavirus disease (COVID-19) continues, near Nottwil, Switzerland June 2, 2020. Picture taken June 2, 2020. REUTERS/Arnd Wiegmann

Swiss Paralympic athlete Marcel Hug trains on a road, as the outbreak of the coronavirus disease (COVID-19) continues, near Nottwil, Switzerland June 2, 2020. Picture taken June 2, 2020. REUTERS/Arnd Wiegmann

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June 02, 2020

A cow runs past graves, on a field in Hamba Praing village, Kanatang, East Sumba Regency, Kanatang district,...